{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "arguments": ["Treatment.Time_elapsed", "Combination.Drug", "Subject.Gender", "Subject.Disorder", "Subject.Population", "Treatment.Route", "Treatment.Freq", "Treatment.Duration", "Subject.Race", "Subject.Age", "Effect", "Treatment.Dosage", "Treatment.Drug", "Treatment.Disorder", "Subject"]}], "input": "We suggest that objective evaluation of retinal function with electrophysiological methods should be performed in patients with visual disturbance during treatment with rifabutin."}
{"adverse event": [{"Treatment.Time_elapsed": "NAN", "Combination.Drug": "NAN", "Subject.Gender": "NAN", "Subject.Disorder": "NAN", "Subject.Population": "NAN", "Treatment.Route": "NAN", "Treatment.Freq": "NAN", "Treatment.Duration": "NAN", "Subject.Race": "NAN", "Subject.Age": "NAN", "Effect": "visual disturbance", "Treatment.Dosage": "NAN", "Treatment.Drug": "rifabutin", "Treatment.Disorder": "NAN", "Subject": "NAN"}]}